Matches no one for empty participants

Signed-off-by: Adam Kalnas <a.kalnas@modcloth.com>
When there is only one participant in secret santa, it's very lonely

Signed-off-by: Rachel Thompson <r.thompson@modcloth.com>
Matches two people to each other.

Signed-off-by: Adam Kalnas <a.kalnas@modcloth.com>
Added the meat an potatoes to this.  Refactoring may still be coming :-)

Signed-off-by: Rachel Thompson <r.thompson@modcloth.com>
Refactored the code to make it more readable.

Signed-off-by: Rachel Thompson <r.thompson@modcloth.com>